Guard for let-off rims of warp-beams.



No. 788,841. PATENTED FEB. 28. 1905. J. W. KI LLPARTRIGK & G. F. TAPLIN. GUARD FOR LET-OFF RIMS OF WARP BEAMS.

APPLIOATION FILED JULY 25. 1903.

Maine-mas life, 783,8 i1,

Patented February 28, 1905.

aef tri le,

JOHN W. KILL PARTRICK AND CHARLES F. TAPlbiN, ()l? LOWELL, MASSACHUSETTS.

GUARD FOW LET-OFF filllVlS OF WMHF IBEIMW SPECIFICATION forming part of Letters Patent No. 783,84t1, dated February 28, 1905.

Application filed July 25,1903. Serial No. 166,967.

To all 11/77/0171, it may concern.-

lie it known that we, JOHN W. KILLPART- RICK and (lemmas F. TAPLTN, citizens of the United States, residing at Lowell, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Guards for Let-Off Rims of iVarp- Beams; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to guards for iet-off rims of warp-beams.

in weaving it has been found that the most satisfactory form of let-off for warp-beams is that of theropc-friction type, and in the general form of this type of let-off a detachable rim for the application of the rope is usually employed, this rim being placed upon a filled beam after the latter has been set in the loom. It is necessary, however, to hold the rim upon the beam in order that the rotation of the beam may be retarded, and to accomplish this end various means have been resorted to, among which set-screws have been employed, while in other instances plugs have been driven between the rim and the beamhead, and in other cases leather is placed between the rim and the l'ieam-head in attempts to securely hold the rim upon the head. There has never been, however, any satisfaction derived by these expedients, the rims frequently slipping off while the loom is in motion, caused by the screws breaking or the plugs and the leather falling from between the rims and the beaml'ieads, and this has caused the breakage of the rims. damage to the cloth being woven, and much annoyance and expense not only to the l )o1'n-tender, but also to the manufacturer.

It is tl'icrefore the primary object of the present invention to provide means to overcome the above-noted objections and by the employment of which the rims may be effectually held upon the beam-heads in a highlyefficient manner and without liability of displacement therefrom until their removal is necessitated by the complete use of the warp from the beam in the operation of weaving.

A further object of the present invention is the provision of simple and eflicient means designed for the purpose stated which may be employed with any form of loom and warpbeam without the necessity of altering their construction in the least degree.

A further object contcu'iplated by the invention is to provide a guard which so constructed as to engage the side of the rim and by frictional contact therewith maintain the rim in its applied position without in the least interfering with the rotation of the beam.

A further object of the invention is to obtain aguard the construction of which is such as to adapt the same for employment with various sizes and thicknesses of rims, thus not restricting the rim to a limited application, but enabling the same to be employed in a. wide range of use.

\Vith these general objects in view and others which will appear as the nature of the improvements is better understood the invention consists, substantially, in the novel construction, combination, and arrangement of parts, as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the appended claims.

\Vhile the form of the ii'lVOllbiOll herein shown and described is what is believed to be a preferable embodiment thereof, it is obvious that the same is susceptible of various changes and mmlil'ications in the form, proportion, and minor details of construction, and the right is therefore reserved to modify or vary the invention as falls within the spirit and scope thereof.

in the drawings, Figure 1 is a perspective view of one end of a warp-Imam and the adjacent portion of a loom-frame and illustrating guards constructed in accordance with the presentinvention applied thereto. Fig. l is an end elevaticm of the beam and the let'olf rim to illustrate more clearly the manner of mounting the rim upon the beam. li ig. 3 is a detail perspective view of the guard removed from the loom. liig. d is a longitudinal sectional view thereof.

Referring to the drawings, the numeral 1 designates the frame of a loom; 2, the warpbeam thereof; 3, the shaft of said beam, and ranged at the corners of the plate to reduce at the beam-head. The latter is provided with a series of peripheral teeth 5, and mounted upon the beam 2 is the rim 6 of a rope-friction let-off, the rope being designated by the numeral 7 and surrounding the rim 6 in the usual manner. The rim 6 is provided at its inner side and at spaced intervals therearound with inwardly-projecting teeth 8, and said teeth may be either arranged in sets or the same may extend around the entireinner surface of the rim 6, the teeth 8 affording means for engaging the rim 6 with the beam-head so that said rim is caused to rotate therewith. It will be observed, however, that the rim 6 is engaged with and disengaged from the beam-head by a movement axially of the beam.

As before premised, it is the object of the present invention to provide means whereby the rim 6 is eflectually held upon the beamhead 4, and to the accomplishment of this end a series of guards 9 is employed, said guards being interposed between the rim 6 and the adjacent side of the loom-frame 1 and are preferably arranged at substantially diametrically opposite points in order to exert their holding action at the most advantageous points upon the rim 6. By referring to Figs. 3 and 1 the detail construction of the guards is clearly shown, and it will be noted that each of the same comprises a guard member 10 and an attaching member 11. The guard member 10 comprises a contact-plate 12, to one side of which is connected a sleeve 13, which latter extends at substantially right angles from the plate 12 and is provided with a setscrew 14:. projecting therethrough and into the bore of the sleeve for a purpose to be presently stated. The member 11 comprises a fastening-plate 15, from one face of which projects a stud 16, which stud is arranged at substantially right angles to the plate 15 and is designed to fit the bore of the sleeve 13 and to be held therein through the impinging action of the set-screw 14, carried by said sleeve. Thus it will be seen that the two members of the guard may be securely held together; but at the same time the guard member 10 is adjustable throughout the length of the stud 16 in order to adapt the guard for an extended range of use in conjunction with let-off rims of varying thicknesses. The fastening-plate 15 is also provided with an elongated slot 17, through which is passed a bolt 18 to anchor the attaching member to the loom-frame, and said elongated slot permits of adjustment of the plate 15 upon said bolt after the latter has been fixed to the loom-frame. Theshape of the slot, however, is immaterial, as a circular opening may be substituted therefor, and, if desired, the plate 15 may be provided with a series of the bolts 18 to strengthen the attachment. The plate 15 is also provided at its face opposite to the stud 16 with a series of feet 19, preferably arthe surface of contact with the loom-frame; but these feet are not essential, and, if notdesired, the same may be omitted.

In the use of the invention a series ofthe guards is employed, as hereinbefore stated, and in theirapplication the same are arranged at substantially diametrically opposite points in relation to the rim 6. The member 11 of each guard is firmly bolted to the inner side of the loom-frame adjacent to the beam-head, and the member 10 is adjusted upon the stud 16 of the member 11 in order that the plate 12 of said member 10 may frictionally engage the side of the rim 6. The set-screw let of the guards is tightened to clamp the member 10 in its adjusted position upon the stud 16, and the member 10 is thus held in fixed relation to the rim 6, but not in such close frictional contact therewith as to interfere with the rotation of the warp-beam. The latter is thus permitted to freely rotate in the operation of weaving to feed off the warps, and in the rotation of the beam displacement of the rim 6 is absolutely precluded. After the warps have been entirely removed from the beam the guards may be readily removed to permit removal of the rim 6 from the beam, and after the setting of a new beam in the loom the rim 6 is applied thereto and the guards readjusted to hold the latter upon the beam-head. By reason of the sleeve 13 engaging the stud 16 it will also be observed that the member 10 may be rotated upon said stud and held fixed at any point thereon through the medium of the screw 1a, thus varying greatly the relative positions of the two members of the guard.

While a series of the guards is illustrated in the drawings for maintaining the rim upon the beam, at the same time it will be understood that it is not essential that more than one guard should be employed for this purpose. In the event of only a single guard being utilized the contact-plate 12 will be made of such length as to conform to at least one-third the circumference of the rim. In such construction a sufiiciently large surface of the rim is thereby covered to maintain the same upon the beam, and, as hereinbefore stated, the invention is sufliciently broad to comprehend the use of any means interposed between the rim and the loom-frame for maintaining the rim on the beam.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-

1. The combination with the head of a warpbeam, a let-off rim carried by the latter and engaging said head, and the adjacent portion of the loom-frame, of means interposed between said let-oif rim and the loom-frame for preventing displacement of the let-off rim from the beam in a direction axially of the latter.

2. The combination with the head of a warpbeam, a let-ofl' rim carried by the latter and engaging said head, and the adjacent portion of the loom-frame, of means interposed between said let-ol'l rim and the loom-frame and frietionally engaging the side of said rim for preventii'ig displacement of the let-01f rim from the beam in a direct-ion axially of the latter.

3. The comlgiination with the warp-beam of a loom, a let-off rim carried thereby, and the adjacent portion oi the loom-frame, of a series of guards interposed between said warp-beam and the loom-frame and each comprising a guard member and an attaching member adjustable relatively to each other, said guard members being adapted to prevent displacement of the let-oii rim from the beam.

4. Tlhecombination with the warp-beam of a loom, a let-oil? rim carried thereby, and the adjacent portion of the loom-frame, of a series of guards interposed between said warp-beam and the loom-frame and each comprising a guard member and an attaching member, said members being adjustable relatively to each other, the attaching member being connected to the loom-frame, and the guard member being arranged opposite the let-oft rim to prevent displacement of the latter from the beam.

The combination with the warp-beam of a loom, a let-elf rim carried thereby, and the adjacent portion of the loom-frame, oi a se ries of guards interposed between said Warpbeam and the loom-frame and arranged substantially dian'letrically opposite, each of said guards comprising a guard member and an attaching member adjustable relatively to each other. l

6. The comljiination with the warp-beam of a loom, a let-ed rim carried thereby, and the adjacent portion of the loom-frame, of a series of guards interposed between said warpbeam and the loom-frame and arranged sub stantially diametrically opposite, each of said guards comprising a guard member, and an attaching member, said members being adjustable relatively to each other, the attaching member being connected to the loom-frame, and the guard member being arranged opposite to the lct-ofi. rim to preventdisplacement of the latter from the beam.

7. A guard for the let oii' rim of warpbeams, comprising a guard member having a contact-plate and a sleeve carried thereby, and an attaching member having a fastening-plate and a stud projecting therefrom, said stud litting in said sleeve, and means :lor locking the stud in said sleeve.

8. A guard for the let-off rim of Warpbeams, comprising a guard member having a contact-plate and a sleeve carried thereby and projecting at right angles thereto, and an attaehing member having a fastening-plate and a stud carried thereby and projecting at right angles thereto, said stud fitting in said sleeve, and means for locking the stud in said sleeve.

9. A guard for the let-oil rim of warpbeams, comprising a guard member having a contact-plate and a sleeve carried thereby and projecting at right angles thereto, and an attaching member having a fastening-plate and a stud carried thereby and projecting at right angles thereto, said stud fitting in said sleeve, and a set-screw carried by said sleeve and engaging the stud for locking the latter in said sleeve.

In testimony whereof we alfix our signatures in the presence of two witnesses.

JOHN XV. KILLPARTRIUK. CHARLES F. TAPLIN.

Vfitnesses:

Omcs'rne M. DAvIs, AUeUs'rUs V. llOVEY'. 

